Home / 155,170.42-214,135.32-88,102.42

Finding the Fourth Proportional to 155,170.42, 214,135.32 and 88,102.42

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Solution

The fourth proportional to 155,170.42, 214,135.32 and 88,102.42 is: 121,581.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,170.42 : 214,135.32 = 88,102.42 : x
  2. Step 2: Convert to fraction form
    155,170.42/214,135.32 = 88,102.42/x
  3. Step 3: Cross multiply
    155,170.42x = 214,135.32 × 88,102.42
  4. Step 4: Simplify right side
    155,170.42x = 18,865,839,899.47
  5. Step 5: Solve for x
    x = 18,865,839,899.47/155,170.42
  6. Step 6: Final answer
    x = 121,581.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.